Title:
METHOD FOR PRODUCING SOLUTION HAVING REDUCED SOLUTE CONCENTRATION
Document Type and Number:
WIPO Patent Application WO/2019/189548
Kind Code:
A1
Abstract:
In this method, a solution FS is supplied to a region on one surface side of a forward osmosis membrane that is provided with a semipermeable membrane and a porous base material disposed on at least one surface thereof, and a solution DS having a higher solute concentration than the solution FS is supplied to a region on the other surface side so as to transfer a solvent contained in the solution FS into the solution DS through the forward osmosis membrane, thereby producing a solution in which the solution DS has a reduced solute concentration, wherein the supply pressure P1 of the solution FS and the supply pressure F2 of the solution DS satisfy the formula: 0.5 kPa ≤ P1-P2 ≤ 700 kPa.
Inventors:
TAHARA SYUJI (JP)
MARUKO NOBUHIRO (JP)
SHON HOKYONG (AU)
PHUNTSHO SHERUB (AU)
KIM JUNGEUN (AU)
LIM SUNGIL (AU)
TRAN VAN HUY (AU)
MARUKO NOBUHIRO (JP)
SHON HOKYONG (AU)
PHUNTSHO SHERUB (AU)
KIM JUNGEUN (AU)
LIM SUNGIL (AU)
TRAN VAN HUY (AU)
Application Number:
PCT/JP2019/013522
Publication Date:
October 03, 2019
Filing Date:
March 28, 2019
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
B01D61/00; B01D69/02; B01D69/12; B01D71/52; C08G65/40
Domestic Patent References:
| WO2018079733A1 | 2018-05-03 |
Foreign References:
| JP2014000533A | 2014-01-09 | |||
| JP2003335835A | 2003-11-28 | |||
| JP2013031836A | 2013-02-14 |
Other References:
SOLEYMAN SAHEBI ET AL.: "Thin-film composite membrane on a compacted woven backing fabric for pressure assisted osmosis", DESALINATION, vol. 406, 16 March 2017 (2017-03-16), pages 98 - 108, XP055638809
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
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